fix(output): render next actions for custom views

cli-engine/src/output/human/mod.rs

@@ -354,7 +354,9 @@ pub fn render_human_with_registry_selected(
     if let Some(data) = &envelope.data
         && let Some(custom) = registry.custom(schema_id)
     {
-        return custom.render(data);
+        let mut output = custom.render(data);
+        append_next_actions(&mut output, &envelope.next_actions);
+        return output;
     }
     match registry.columns(schema_id) {
         Some(columns) => {

cli-engine/tests/custom_human_views.rs

@@ -0,0 +1,28 @@
+use cli_engine::{
+    Envelope, HumanViewRegistry, NextAction, NextActionParam, render_human_with_registry_selected,
+};
+use serde_json::json;
+
+#[test]
+fn custom_human_output_appends_next_steps_footer() {
+    let mut registry = HumanViewRegistry::new();
+    registry.register_func("shopping-cart", |_| "Cart: ready\n".to_owned());
+    let envelope =
+        Envelope::success(json!({ "id": "cart-1" }), "shopping-cart").with_next_actions(vec![
+            NextAction::new(
+                "shopping checkout complete <cart-id> --agree",
+                "Place the order",
+            )
+            .with_param("cart-id", NextActionParam::value("cart-1")),
+        ]);
+
+    let out = render_human_with_registry_selected(&envelope, &registry, "shopping-cart", "");
+
+    assert!(out.starts_with("Cart: ready\n"), "{out}");
+    assert!(out.contains("\nNext steps:\n"), "{out}");
+    assert!(
+        out.contains("shopping checkout complete cart-1 --agree"),
+        "{out}"
+    );
+    assert!(out.contains("Place the order"), "{out}");
+}